Can Am Maverick R X RS coil spring upgrade, who's the best?

[21RC]

Is it Shock Therapy, Schmidty or MTS?
I talked to MTS and Schmidty and they both recommended a re-valve along with their springs.
I have not contacted Shock Therapy.
Eibach does not make a spring set for the X RS model, they do for the X and X RS Smart shock models, I offered my X RS to them to do their R&D but to date I have not heard back from them.

 

[MWB]

I wouldn't contact Shock Therapy, Go with MTS or Schmidty. I only know of Schmidty from here on the board I have MTS on my car and they have been great to work with as far as Shock Therapy well the owners past business practices make it so I wouldn't even buy something with his product on it.